Howdy,
I actually don't know the process for registering internationally; but the numbers to call are in the email that comes with the voucher:
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Prometric Regional Service Centers:
Asia/Australia 61-2-9414-3663
Europe 31-320-239-800
Japan 81-3-5541-4774
Latin America 1-443-751-4300 or e-mail:
[email protected] USA/Canada 1-800-795-3926
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There is *no* way you can prepare completely without the specification (EJB 2.0), but the good news is, *everything* in the exam is from that document. It reads *much* easier than the JLS, at least

(damned by faint praise?)
Anyway, either the O'Reilly or Roman book can help you *learn* the concepts, but they do not cover all of the specifics that you need to know for the exam. And they cover some material that is *not* on the exam, so keep your focus on the objectives.
If you are just learning EJB, you may not have enough time to do well on the beta... the concepts are not difficult, but the quantity of things you must know for the exam is LARGE.
If you have at least some familiarity with EJB, even just a little, my suggestion would be to start studying the spec, writing your own mock questions (and flashcards

) and then refer to the O'Reilly book or Roman book ONLY when you do not understand a concept discussed in the spec. Otherwise, the spec is really very clear.
You must have an *understanding* of what these things mean, though, in order to be able to answer all the questions, because they are not just straight memorization, but expect you to recognize the implications of the rules in the spec. For example, what does it *mean* to have a remote interface? What are the implications? What must you do *because* it is remote? What must you *not* do?
Oh yeah, on another
thread I think it was Mark Fletcher that suggested coming up with which spec sections can be used for a particular objective, and I think that is a GREAT idea. It will really help you studying just to do that exercise. Why don't you all just pick an objective at random (rather than starting at 1) and look through the spec to find ALL the places where that objective is covered.
For most of the objectives, you need to study only ONE chapter for that objective (although it might be several different sections of that one chapter), so it should not be too hard to narrow down the objectives.
Get busy
cheers,
Kathy